AS758

AS758 is a dormant, legacy autonomous system registered under ARIN to Merit Network, Inc. — the Michigan nonprofit research-and-education network operator — and it currently announces zero IPv4 and zero IPv6 prefixes, with zero observed BGP peers in current routing tables.

ARIN RDAP records the autnum's top-level registration event as 1990-10-08, with a last-changed date of 2012-04-02. The ARIN-assigned name is MERIT-AS-24, and the registry status is Active — the number itself has not been revoked or reassigned, it simply is not being used to originate routes today.

Merit Network, Inc. is an active independent nonprofit corporation founded in 1966 and governed by Michigan's public universities; it operates a statewide regional research-and-education network and historically ran the NSFNET backbone. That organizational history describes Merit broadly, however — no page on merit.edu was found that names or discusses AS758 specifically.

Both bgp.he.net and bgp.tools independently show AS758 with zero originated prefixes and zero peers as of late July 2026, and the ASN does not appear in PeeringDB (only Merit's actively-routed AS237 is listed there, with an Open peering policy). CAIDA AS-rank places AS758 at 79,459 with a customer cone of just itself — 1 ASN / 0 prefixes / 0 addresses — and zero topology degree. RPKI/ROA posture was not available from the sources checked and is recorded as Unknown rather than estimated. The autnum's own RDAP record carries three named contact roles directly for AS758 (abuse, administrative, technical) — see Fields below.

Merit's live operational routing runs under AS237, not AS758. Treat AS758 as an inactive legacy ASN held by a legitimate, well-known R&E operator, with the caveat that its current dormancy was confirmed only from point-in-time BGP-table snapshots rather than a longitudinal history.

Operator

Merit Network, Inc. (nonprofit R&E network; ARIN name MERIT-AS-24) [Confirmed] — ARIN RDAP autnum, whois.arin.net/rest/asn/AS758

Country / RIR

US, ARIN [Confirmed] — rdap.arin.net/registry/autnum/758

Allocated

1990-10-08 (ARIN RDAP autnum top-level registration event); last changed 2012-04-02 [Confirmed] — rdap.arin.net/registry/autnum/758

Org status

Active (ARIN RDAP autnum status); Merit Network, Inc. is an active independent nonprofit, founded 1966, governed by Michigan's public universities [Confirmed] — rdap.arin.net/registry/autnum/758, merit.edu/about

Contacts

abuse@merit.edu, +1-734-527-5740 (NETWO26-ARIN, abuse role); ipreg@merit.edu, +1-734-763-3448 (IN-ORG-ARIN, administrative role); operations@merit.edu, +1-734-527-5717 (MERIT-ARIN, technical role); all at 880 Technology Dr., Suite B, Ann Arbor, MI 48108-8963 [Confirmed] — ARIN RDAP autnum 758 (per-role entities on the record itself, not borrowed from a sibling ASN); RIPEstat abuse-contact-finder independently confirms abuse@merit.edu for resource 758

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-28; not on Spamhaus ASN-DROP; WebSearch quota was exhausted before a deeper NANOG-archive pass specific to AS758 could be completed, so this is not a confirmed clean bill of health

Network & routing

Network type

dormant/legacy ASN under Merit Network, Inc. (independent nonprofit R&E network, founded 1966, governed by Michigan's public universities); Merit's actively-routed ASN is AS237 [Confirmed for org type and dormancy] — merit.edu/about, bgp.he.net/AS758

Size

dormant — 0 IPv4 prefixes, 0 IPv6 prefixes, 0 BGP peers observed; CAIDA AS-rank 79,459 with a customer cone of 1 ASN / 0 prefixes / 0 addresses (self only) and asnDegree total 0 [Confirmed] — bgp.he.net/AS758, bgp.tools/as/758 (2026-07-27/28), CAIDA AS-rank API (api.asrank.caida.org)

Routing/peering

NOT announced — zero prefixes, zero peers, zero upstreams currently observed; AS758 does not appear in PeeringDB (only AS237 is listed for Merit Network, Inc., policy "Open") [Confirmed for zero announcements; Unknown for any AS758-specific peering policy] — bgp.he.net/AS758, bgp.tools/as/758, peeringdb.com/org/31248

RPKI

not assessable — no ROA/RPKI validity data surfaced for AS758; consistent with an ASN that originates nothing [Unknown] — no source returned RPKI data

Notable usage

shows zero prefixes originated and zero BGP peers in current global BGP tables, consistent with a dormant/legacy Merit ASN distinct from the actively-announced AS237 [Likely] — bgp.he.net/AS758

Related ASNs

AS237 (Merit's actively-routed ASN; listed in PeeringDB with an Open peering policy) [Confirmed] — peeringdb.com/org/31248

Analyst note

AS758 (ARIN name MERIT-AS-24) is a dormant/legacy Merit Network ASN registered 1990-10-08 that currently announces zero prefixes and has zero observed BGP peers; distinct from Merit's actively-routed AS237. No merit.edu page specifically names AS758.